﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace bai05_shard
{
    class Rectangle 
    {
    int x, y;
    public void setValues (int a, int b) 
   {
        x = a;
        y = b;
    }
    public int area() { 
	return (x * y); 
    }
    }     

    class Program
    {
        static void Main(string[] args)
        {
            Rectangle  recta = new   Rectangle();
         Rectangle  rectb = new  Rectangle();
         recta.setValues(3, 4);
         rectb.setValues(5, 6);
         Console.WriteLine("rect a:{0}", recta.area());
         Console.WriteLine("rect b:{0}", rectb.area());

        }
    }
}

